[AG-TECH] Firewall and unicast questions

Nagykaldi, Zsolt F. (HSC) Zsolt-Nagykaldi at ouhsc.edu
Thu Apr 6 21:48:34 CDT 2006

The UMTP server associated with the AG connector has been unreachable for over a month. The connector comes back with an error message and prompts to "use other server..", but there are no other options given. Any suggestions on what we supposed to do?
_ _ _
Zsolt Nagykaldi, PhD
Research Associate, Clinical IT Specialist
University Of Oklahoma Health Sciences Center
Department Of Family And Preventive Medicine
Oklahoma Center For Family Medicine Research
900 NE 10th Street
Oklahoma City, OK 73104
Phone: (405) 271-8000 Ext.:1-32212
Fax:     (405) 271-1682


From: owner-ag-tech at mcs.anl.gov on behalf of NamGon Kim
Sent: Thu 4/6/2006 7:42 PM
To: Masullo, Chris F; ag-tech at mcs.anl.gov
Subject: RE: [AG-TECH] Firewall and unicast questions

Dear Chris,

My name is Namgon Kim.
I am developing a multicast connectivity solution for AG which can be
used under firewall.
AG Connector is the name of my solution.
I hope you to test AG Connector in your network.

It encapsulates multicast data of AG and uses one port number (8010) for
connection with outside of firewall.

If you use AG Connector, since what you need to do is opening 8010 port,
firewall traversal will be easier.

Your can download and see some documentation from here.

If you need any question about AG Connector, let me know.

- Namgon

> -----Original Message-----
> From: Masullo, Chris F [mailto:masullo at bnl.gov]
> Sent: Friday, April 07, 2006 1:04 AM
> To: ag-tech at mcs.anl.gov
> Subject: [AG-TECH] Firewall and unicast questions
> Hello All,
> We currently have our AG nodes outside our firewall, however cyber
> security
> has told us that we need to move the systems inside our firewall.  The
> last
> time I brought up this issue a number of years ago I was told that
> multicast
> would not get past our firewall. I have some questions regarding this
> issue.
> Has anyone successfully placed an AG VTC system behind a Cisco
> Are there any issues using unicast mode for and AG node behind a
> firewall?
> If not then why not run unicast?
> I have looked through the mailer however I do not see any answers to
> these
> Questions.
> Thanks in advance
> Chris Masullo                     Information Technology Division
> Brookhaven National Laboratory    Network Engineering & Operations
> 61 Brookhaven Ave.                Phone:  (631) 344-2326
> Upton, NY 11973                   Fax:    (631) 344-7688

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